Uploaded March 2015 | Updated September 2026, 2 weeks ago

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Flush Valve Seal Kits by Korky

There’s a Korky Seal to fit any toilet tank. Korky Seals are made of 100% rubber for the best seal and are designed to fit your specific toilet. The exclusive long lasting red rubber resists chlorine, bacteria, city water treatments, hard water, and well water. Korky Red Rubber Seals come with a 5 year warranty and all Korky products are proudly made in the USA. When replacing a toilet seal, choose the one that lasts the longest.